Nitrate Levels Too High

ffishh

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i recently fed my fish some seaweed, he ate all of it and i removed the bits left in the clip, but the nitrate levels still went way up, all the way to 160 ppm. i did a tank change, and it went down to 80 ppm, but it wont go down. ive done one more tank change about a week later and it didn't go down.

i'm assuming it's a waste problem, since i've always used tap water and the levels have been fine, but ive scrubbed everything and cycled the gravel and it isn't helping.

edit: i forgot to mention that all other levels, ph, nitrite, and ammonia, are all fine.
 

JDK426

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Agreed Seachem Prime will minimize the levels for less stress on your fish.
And also water changes every day or two, but I would also cut back on the amount of food being given until levels get more stable
 

GuppyDazzle

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Something is overloading your tank with nitrates. If your nitrates were at 160 ppm, and you did a 50% water change and they dropped to 80 ppm, then a week later you did another 50% water change and your numbers were still 80 ppm, whatever caused the spike in the first place is still present.

Unless you have a rotting carcass in the tank the most likely cause would be overfeeding.

It is a waste problem. The first component of waste creation is the amount of food put into the tank.
 
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